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I need to consume a JSON-formatted data stream via WebSocket, and send the data as is to a Redis server. That’s all this application needs to do; no UI, no requests need to be attended and the data doesn’t need to be processed at all.
I want to get the smallest footprint and highest performance. Do you think Node.js/V8 would handle this scenario better than the Java/JVM? I’m between these 2 options because are the ones I can manage, although my main skill is Java.
It all depends on the environment that you’re installing the application on, and how much experience you have with each.
Nodes event-loop based model is very efficient, however I have found Java to perform better for CPU intensive tasks. I don’t consider myself to be an expert on either (approx 10 months Node.js, 3 years part-time Java experience) so don’t take my answer as gospel.
In your case you’re only really performing I/O which is where Node.js excells, if you’re good with JavaScript pick Node!